<template>
  <view>
    <view class="goods-list">
      <view v-for="(goods,i) in goodsList" :key="i" @click="gotoDetail(goods)">
        <my-goods :goods="goods"></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        //请求参数对象 
        queryObj:{
          // 查询关键字
          query:'',
          // 商品分类id
          cid:'',
          // 页码值
          pagenum:1,
          // 每页显示多少条数据
          pagesize:10
        },
        goodsList:[],
        total:0,
        // 节流阀
        isloading:false
      };
    },
    onLoad(options){
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || '',
      // console.log(this.queryObj)
      
      this.getGoodsList()
    },
    methods:{
      // 获取商品列表数据的方法
      async getGoodsList(cb){
        // 打开节流阀
        this.isloading = true
        const {data:res} = await uni.$http.get('/api/public/v1/goods/search',this.queryObj)
        // 关闭节流阀
        this.isloading = false
        // 只要数据请求完毕，就立即按需要调用cb回调函数
        cb && cb()
        if(res.meta.status!==200) return uni.$showMsg()
        
        this.goodsList = [...this.goodsList,...res.message.goods],
        this.total = res.message.total
      },
      gotoDetail(goods){
        uni.navigateTo({
          url:'/subpkg/goods_detail/goods_detail?goods_id=' + goods.goods_id
        })
      }
    },
    onReachBottom(){
      if(this.queryObj.pagenum * this.queryObj.pagesize >=this.total) return uni.$showMsg('数据加载完毕！')
      if(this.isloading) return 
      //让页码值自增+1
      this.queryObj.pagenum ++
      this.getGoodsList()
    },
    onPullDownRefresh(){
      //重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []
      // 重新发起数据请求
      this.getGoodsList(()=>uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">
 
</style>
